Direct Application of Phosphate Rocks and Glauconite as Alternative Sources of Fertilizer in Argentina

Castro, Liliana Norma; Tourn, S.

doi:10.2113/0120071

Cited by 16 publications

(4 citation statements)

References 2 publications

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“…Yadav et al (2000) have also reported 96% extraction of the potash from glauconite sand by using 6 M hydrochloric acid leaching at 105°C for 3 h (Yadav and Sharma, 1992;Yadav et al, 2000). Similarly, several experiments were carried out on phosphate rocks (22-25% K 2 O) and glauconite sands (~6% K 2 O) available in Argentina for direct use in fertilizers (Castro and Tourn, 2003). Kleiv and Thornhill (2007) reported the use of planetary mill grinding to increase the K release from K-feldspar via leaching.…”

Section: Introductionmentioning

confidence: 97%

Studies on extraction of potassium values from nepheline syenite

Jena

Dhawan

Rao

et al. 2014

International Journal of Mineral Processing

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Section: Introductionmentioning

confidence: 97%

Studies on extraction of potassium values from nepheline syenite

Jena

Dhawan

Rao

et al. 2014

International Journal of Mineral Processing

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“…Glauconite is potassium phyllosilicate (clay mineral) with a dioctahedral structure [29][30][31][32] distributed in ancient marine sediments [33][34][35][36][37][38]. Due to the high content of K 2 O (up to 8-9%), glauconite can serve as an independent unconventional potash fertilizer [39][40][41][42][43][44][45] that has a prolonged effect [46]. The aim of this research was to study the mechanochemical methods of intracalation of urea into glauconite to synthesize a polyfunctional SRF using planetary and ring mills.…”

Section: Introductionmentioning

confidence: 99%

Mechanochemical Preparation of Slow Release Fertilizer Based on Glauconite–Urea Complexes

et al. 2019

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We investigated the mechanochemical synthesis of complex slow release fertilizers (SRF) derived from glauconite. We studied the effectiveness of the mechanical intercalation of urea into glauconite using planetary and ring mills. The potassium-nitric complex SRFs were synthesized via a mechanochemical method mixing glauconite with urea in a 3:1 ratio. The obtained composites were analyzed using X-ray diffraction analysis, scanning electron microscopy, X-ray fluorescence analysis, and infrared spectroscopy. The results show that as duration of mechanochemical activation increases, the mineralogical, chemical, and structural characteristics of composites change. Essential modifications associated with a decrease in absorbed urea and the formation of microcrystallites were observed when the planetary milling time increased from 5 to 10 min and the ring milling from 15 to 30 min. Complete intercalation of urea into glauconite was achieved by 20 min grinding in a planetary mill or 60 min in a ring mill. Urea intercalation in glauconite occurs much faster when using a planetary mill compared to a ring mill.

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“…The potential of glauconite as raw material for the production of fertilizer has long been reported by the Ministry of Foreign Affairs of the United States (Curtis, 1924). Among countries that have reported the potential for acid leaching of potassium from glauconitic sandstone deposits for fertilizer purposes are (see Table 3) India (Yadav et al, 2000), Iran (Karimi et al, 2012), Tunisia (Erraioui, Srasra, Zargouni,Tajeddin, 2005), Quebec-Canada (Cousineau & Pierre, 2006) , Argentina (Tourn & Castro, 2003) and Egypt (Ammer & Sediek,, 2003). Actually, the glauconitic potential of sandstone for potassium leaching purposes will be supported by the Oxide analysis.…”

Section: Comparison Of Wallace Potassium Potential To Prospective Coumentioning

confidence: 99%

Evaluation of Potassium Leaching Potential of Wallace Sandstone From Nova Scotia in Acid Solution

Amadu¹,

Miadonye²

2019

IJC

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The increasing global demand for potassium fertilizer coupled with the uneven global distribution of potash has spurred global effort aimed at identifying feasible sources of geological resources that have the potential for supplement. Consequently, glauconitic sandstones have been studied in relationship to potassium leaching experiments to determine the feasibility of potassium supply for agronomical purposes. In Nova Scotia, Wallace Sandstone is glauconitic, and it has been used extensively for building and construction purposes. In this paper, we have evaluated the potential for potassium release from Wallace Sandstone in acid solution at room temperature. We measured potassium release potential using solution pH versus time in addition to leached potassium after experiments. Results indicate measurable release of potassium from Wallace Sandstone samples.

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Direct Application of Phosphate Rocks and Glauconite as Alternative Sources of Fertilizer in Argentina

Cited by 16 publications

References 2 publications

Studies on extraction of potassium values from nepheline syenite

Studies on extraction of potassium values from nepheline syenite

Mechanochemical Preparation of Slow Release Fertilizer Based on Glauconite–Urea Complexes

Evaluation of Potassium Leaching Potential of Wallace Sandstone From Nova Scotia in Acid Solution

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